Brake



Jan. 1, 1935. V SHARAR 1,986,123

BRAKE Filed Sept. 8, 1932 3 Sheets-Sheet l Jan. 1, 1935. F H HARAR 1,986,123

BRAKE Filed Sept. 8, 1952 s Shets-Sheet 2 jflidizawar WOW 04d 0- F. H. SHARAR 1,986,123

BRAKE 3 Sheets-Sheet 3 Jan. 1, 1935.

Filed Sept. 8, 1952 Patented Jan. 1, 1935 UNITED wes This invention relates to brakes designed,

primarily for use in connection with motor ve- 5, maximum braking qualities at:-all-times, with the minimumiamount of power.

Another important object .of the .rinvention is the provision of a brake wherein there is absolutely no resistance offered by the elementsthereof when the brake :is inactive, or when the wheel or movable member braked by the;device, is running free.

A still further object of .the invention ris'to provide a brake whichmay .berreadily andleasily :dismantled, to .permit the repair :and .-ad-justment-of the brake, with facility. With the foregoing .and other objects ,in view,

which will appear as .;the description proceeds, the; invention resides ,in :the -.cembination andarrangement of parts and in :the details'of construction hereinafter described an'clsclaimed, .it

being understood that changes in the precise embodiment -of the invention Jherein disclosed, maybe madewithin the-scope of What .is claimed, Without departing .from the :spirit -.of the -invention.

Referring -.to the drawings:

Figure 1 is a sectional view through a brake constructed in accordance with the invention, and illustrating the brake as applied to a front wheel of a motor vehicle.

Figure 2 is a sectional view taken on line 2--2 of Figure 1.

Figure 3 is a sectional detail view illustrating one of the sliding bolts that have connection with the flanged sliding pressure sleeve.

Figure 4 is a fragmental detail view illustrating the connection between the brake yoke and brake housing.

Figure 5 is an end elevational view of the brake operating yoke.

Figure 6 is a sectional View through the rear wheel of a motor vehicle, and illustrating the brake applied thereto.

Referring to the drawings in detail, the reference character 5 designates one end of the front axle of a motor vehicle, which is of the usual construction, the same being provided with means for pivotally connecting the axle 6 thereto.

The wheel in the present showing, is indicated by the reference character 7 and is of the artillery type. Bolted to the wheel near the hub thereof, is a brake drum 8, which is provided with ribs 9 formed on the inner surface thereonanel -arrangedl-inf spaced relation with eachbther. V

These ribs 9 .provide aguidesfor the movable brake disk 10, which is formed with notches to accommodate ,the ribs} .in .such a .way that movement .bf thelbrak'e .disk; 10 longitudinally of the ribs 9, willbe permitted, but rotarymovement of the .disk 10 with respect to the brake drum, .;prevented. a l

.niovablebrake -disk i'l'0,fis formed with a central opening Within which the flanged sliding pressure .sleeyel'l ismounted, the pressure sleeve being formed .Withan rann'ul'a'r flange .12, ,pro-' viding 3a, stop against which the ball race 13 en ages.

curved ,portion .14against which thelball race 13' engages, thejinwardlyscurved portion and an-, nularlflangeflconstituting .a housing for the ball race. I

The length .or the sleeve "lllis-such that the inner end bfjthe sleeve extends an appreciable distancebeyon'd 'thefiinner surface of the ,movabldbrake disk 10, where .it is provided with threads fthat cooperate with internal threads formed on 'the"bearing ring '15.

Surrounding the bearing ring 15, is a floating friction ring 16, which has its outer surface pro- I V a v 1r gnscleany shown'fbyIF'igure. 1 of ,the drawings, 1

thebr'ake "disk 10 is formed withan inwardly vided with friction members 17, which are circu- 3O lar in formation, and constructed of friction material such as asbestos, or other material commonly used in lining brakes.

The inner side of the brake drum is closed by means of the disk 18, which is riveted to the axle flange 19, by means of rivets 20.

Secured to the bearing ring 15, are bolts 21 that are. disposed opposite to each other and extended an appreciable distance inwardly from the disk 18, the bolts being formed with bearings 18' that move through openings in the disk 18.

These bolts provide supports for the brake operating yoke 22 which is formed with outwardly curved end portions 23 which contact with the disk 18, as clearly shown by the drawings.

The upper end of the brake operating yoke is guided by the .finger 24 that extends inwardly from the disk 18, the finger passing through an opening formed in the yoke, near the upper end thereof.

A brake operating rod indicated by the reference character 25 connects with the yoke, so that when the rod 25 is operated, the brake will be operated to accomplish its purpose.

In order that the movable brake disk 10 will be normally held out of contact with the floating friction ring 16, coiled springs 26 are provided, which coiled springs are seated in the offset portions 27 of thebrake drum. I

Bolts extend through the springs 26, and have their inner ends threadedin openings formed in the movable brake disk, with the result that the action of the spring will be tourge the brake disk to its inoperative, position.

In the operationof the device, assuming that the elements of the brake are in positions as shown by Figure 1 of the drawings and it is desired to apply the brake to retard movement of t the wheel 7, it is only necessary to pull the brake This movement results in the operating rod 25. brake operating yoke rocking, or-moving inwardly, pulling the bearing ring'15 towards the axle'5.: As the bearing ring 15 moves inwardlypthe brake disk 10 is moved. into engagement with the floating friction'ring 16, to move the floating friction ring inwardly andclamp the floating friction ring between the brake disk 10 and disk 18.

As the rod 25 is released, the coiled springs 26 operate to return the brake mal position. r V

In the form of the invention as shown by Figure 6 of the drawings, the brake is shown as applied to the rear wheel of a motor vehicle.

In this showing, the rear axleis'indicated by the reference character 5', to which the" wheel 6" is'secured. Th'e brake drum is indicatedgenj erally by the'reference character '7' and is pro-L vided with recessed portions 8' toac'commodat'e the springs 9' through which the connecting bolts 10' extend. J

These connecting bolts lohavethreadedend portions disposed in threaded openings of the", brake disk 11"that moves within the brake, drum, in the same manner as the brake drum 10, shown by Figure 1 of the drawings.

' The floating, friction disk is indicated by the. reference character 12' and carries friction. members 13' on its surfaces, to 'be'gripped be tween the brake disk 11' and inner surface of the disk 14".

disk '10 to "its 'norfr erating'the sleeve wherebyvthe first mentioned ation of the brake as shown by Figure 1, and further detailed disclosure as to the operation,

is believed unnecessary.

"Having thus described the invention what is claimedis; 1'." In a brake, a supporting axle, a wheel mounted on the axle, a brake housing secured to the wheel, a sleeve mounted for sliding movement on the axle and having an annular flange at-oneend thereof, abrake disc rotatable with the housing and loosely mounted on the sleeve, anti-friction members between the flange and disc, a brake disc'mounted on the axle, a floating ring between the brake discs, means for opbrake disc ism'oved into clamping relation with thefioating'friction ring and second mentioned brake disc, and means for normally returningthe first mentioned brake disc to its inactive position.

2. In a brake of the class described, the combination of a fixed brake disc, an axially movable sleeve, an annular flange extending from one endof the sleeve, an axially movable brake disc having an opening through which the sleeve extends, roller bearings between the flange and disc whereby the brake disc is permitted to retate with respect to the sleeve and flange, a floatingbrake ring between the fixed brake disc andthe axially movable brake disc, and means for moving the sleeve and axially movable brake disc into clamping relation with the floating brake ring, and fixed brake disc.

I FRED H; SHARAR. 

